Home / 3,947.58-5,912.87-1,864.44

Finding the Fourth Proportional to 3,947.58, 5,912.87 and 1,864.44

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Solution

The fourth proportional to 3,947.58, 5,912.87 and 1,864.44 is: 2,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.58 : 5,912.87 = 1,864.44 : x
  2. Step 2: Convert to fraction form
    3,947.58/5,912.87 = 1,864.44/x
  3. Step 3: Cross multiply
    3,947.58x = 5,912.87 × 1,864.44
  4. Step 4: Simplify right side
    3,947.58x = 11,024,182.02
  5. Step 5: Solve for x
    x = 11,024,182.02/3,947.58
  6. Step 6: Final answer
    x = 2,792.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.